<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        {{message}} <br>
        {{1+1}} <br>
        <span v-text="message"></span>
        <span v-html="message"></span>
    </div>
    <script src="../node_modules/vue/dist/vue.js"></script>
    <script>
        // 1、声明式渲染
        let vm = new Vue({
            el: '#app',
            data: {
                message: "<h1>Hello World</h1>"
            }
        });



    </script>
</body>
</html>